baber/WOPTO huggingface dataset:
Patent GB-692303-A (GB)
Title: Improvements in or relating to electric resistors and method of manufacturing same
IPC: H01B1/18
Filed: 1949-03-30
Abstract: 692,303. Resistance coatings and deposits; direct connections between conductors. PALUMBO, T. R. March 30,1949 [March 31,1948], No. 8606/49. Classes 37 and 38 (i). [Also in Groups V and XI] A method of manufacturing an electrical resistance element comprises heating a porous refractory body or rod of alumina, thoria or silica to a temperature within the range 800‹ to 1400‹ C. in a hydrocarbon gas, for example methane, ethane or acetylene, and maintaining the chosen temperature until the refractory oxide and carbon are combined together by a catalytic reaction occurring therebetween and the pores of the body are coated with a pure hard oxidation resistant carbon. It is made clear in the Specification that the expression " combined together by a catalytic reaction occurring therebetween " essentially means that the refractory body is combined with carbon without the use of any other catalyst than the refractory body itself. The invention is directed particularly towards provision of cathodes or heaters for cathodes in discharge tubes as exemplified in Fig. 2, wherein an aluminium oxide/carbon impregnated resistor rod 8 prepared in accordance with the process has terminals in the form of twisted-on wire coils 11, 12 secured by applying a conductive paste and heat-treating. The conductive paste may consist of a powder of the rod material mixed with a suitable binder. For use as a cathode a middle area of the rod is directly coated with electron emitting oxides such as the oxides of barium, strontium or calcium. For air operation wattage capacity may be increased by coating with fused glass or quartz or vitreous enamel. A cold-working resistor rod may be tapped for use as a potential divider.
Patent GB-840539-A (GB)
Title: Improvements in or relating to electrical pulse-counting devices
Inventor: DOUGLAS WILLIAM SHOLTO
IPC: G06F7/498
Filed: 1958-03-18
Abstract: 840,539. Electronic counting - apparatus. ERICSSON TELEPHONES Ltd. Feb. 20, 1959 [March 18, 1958], No. 8710/58. Class 106 (1). An electrical pulse counter is adapted to count, additively and subtractively, pulses in each time-position of a multiplex system. A binary counter is described for pulses having a duration t occurring at intervals T, T being the time of a multiplex cycle. Each counter stage comprises a delay device such as D1, having a delay time of T. Pulses to be added arrive at a terminal I1 and pass via a gate G1 which is open unless a pulse to be subtracted arrives simultaneously on a lead I2, to the control gate G3 of the first counter stage. Assuming the counter initially to register zero, the first pulse to be added in a particular time of the multiplex cycle passes via gates G3, G1 to be stored in a delay device D1, an output appearing periodically at the appropriate differential time at P1. The gate G3 is now inhibited and a gate G4 opened so that the next pulse to be added is stored in the next denominational delay device D2, the pulse in the first device D1 being pecked out by an inhibitory gate G8. Assuming the counter to register eight, i.e. a pulse to be circulating the delay device D3 only, a pulse to be subtracted on the lead I2 is effective, if it is not coincident with an additive pulse, to cause via gates G25, G28 the pulse circulating in the device D3 to be pecked out and via gates G25 and G17, G7 respectively a pulse to be inserted in the two lower orders. The counter thus registers the difference in number of additive and subtractive pulses, but only when the number of additive pulses is the greater, the outputs appearing successively at the terminals P1-P4 representing the counts in the various time positions of the multiplex cycle.
Patent GB-117644-A (GB)
Title: Improvements in and relating to Locking or Securing Devices for Electric Fittings.
IPC: F21V17/00
Filed: 1917-06-18
Abstract: 117,644. St. Helens Cable & Rubber Co., and White, J. C. June 18, 1917. Guards; shades and globe holders.-A device for securing the guards, shades, well glasses, &c. of an electric lamp comprises a locking-ring having castellations on its periphery, and a. locking-pin engaging in one of the recesses between the castellations and in a perforation or depression in the fixed part of the fitting. The pin may be removable by means of a special key, or may be perforated to receive a sealing-device, or may be tapered and driven or wedged into position. Fig. 1 shows one form in which the ring 4 for securing a well glass 3 and its packing washer 5 to an electric lamp fitting is locked by a rod 8 forming part of the guard and engaging recesses in the ring 4 and grooves in the lamp fitting 1. The bent ends 9 of the rods 8 engage recesses in the fitting and are fixed by a screwed ring 11 engaging the fitting 1. In a modification, the ring 11 screws on the ring 4 and the rods 8 engage recesses in the ring 4 and recesses in the fitting 1.
Patent GB-496094-A (GB)
Title: Improvements in or relating to means for attaching detachable or renewable heel lifts to boots and shoes
IPC: A43B21/39
Filed: 1938-03-22
Abstract: 496,094. Detachable heel -lifts for boots and shoes. BLANDFORD, N., AGNEW, P. R., and GRIFFITHS, W. H. March 22, 1938, No. 8735. [Class 17 (iii)] A rectangular-shaped plate A, Fig. 1, with the two side and rear edges bevelled is secured to the heel centrally adjacent the breast face. A heel plate B, Fig. 2, to which a heel-lift is attached has a slot cut out from its breast face with bevelled edges to conform to the plate A. When the parts are assembled in correct relation, a key with front and rear ends bent at right-angles is turned to engage its turned inner end in a slot cut in the heel plate B. The outer end of the key locks against the breast face of the heel.
Patent GB-177699-A (GB)
Title: Improvements in or relating to folding tables and the like
Filed: 1921-03-22
Abstract: 177,699. Heard, F. G. March 22, 1921. Addition to 163,584. Folding and collapsable tables. - Folding tables, having the upper ends of the legs b linked at c to the top a the legs being connected in pairs by cross-bars to facilitate folding &c., are provided with bracing-links d which may be crossed as shown or may be shortened so as not to cress. The links c, d are on opposite sides of the legs b which can fold flat against the underside of the top, and may be held in place by catches as described in the parent Specification.
Patent GB-214247-A (GB)
Title: Improvements in absorption refrigerating apparatus
IPC: F25B33/00
Filed: 1924-04-08
Abstract: 214,247. Platen-Munters Refrigerating System Aktiebolag, (Assignees of Platen, B. C. von, and Munters, C. G.). April 12, 1923, [Convention date]. Addition to 202,650. Refrigerating, absorption machines and processes for.-In the continuous-cycle system described in the parent Specification, wherein the generation of gas from the rich liquor flowing through a pipe T to the generator K effects the circulation of the liquor, the pipe. T is directly heated by the heating-means of the generator, while the main bodv of liquor in the generator may be partly insulated from the heating-means. The generator may be heated by a gas burner 1, Fig. 1, the pipe T being coiled about the central flue 2 for the hot products of combustion, or an electric heating element 3 may be arranged in a central flue. A sleeve of heat-insulating material may be, fitted around the coil T, or the coil may be situated within the flue. In another arrangement, the strong liquor may flow from the pipe P, Fig. 2, into a chamber 4 in the generator having a straight riser pipe 5, an electric heating unit 3 being fitted in the chamber 4. The gas generated in the chamber 4 periodically forces a column of liquid up the pipe 5. In a further arrangement, an electric heating-element is fitted around the lower part of a straight pipe conveying the strong liquor, so as to heat the pipe as well as the main body of liquor. The heating-element may, however, be surrounded by insulation to impede the beating of the main body of liquid. Specification 212,5721 is referred to.
Patent GB-1511591-A (GB)
Title: Vortex shedding device for use in measuring air flow rate into an internal combustion engine
IPC: F02D35/00
Filed: 1976-03-08
Abstract: 1511591 Vortex generating flowmeter FORD MOTOR CO Ltd 8 March 1976 [28 April 1975]  09122/76 Headings G1G and G1R Flow measuring apparatus comprises a Venturi section with an elongated member 48 in the throat portion 30; electrical means mounted adjacent the throat for measuring the rate at which vortices are generated; and a thermally insulating cover 64, 66 over the electrical means. The apparatus is similar to that described in Specification 1511592. The vortices are counted either by Piezo-electric devices 52, 54 mounted on circuit boards 56, 58 or by thermal sensing circuits. Means for sensing airpressure and temperature may be included. The apparatus is used to determine the flow into an I.C. engine where the cover protects the circuitry from heat and corrosive atmosphere and plastics coated conductive sheets 60, 62 shield the circuitry from e.m. interference.
Patent GB-232216-A (GB)
Title: Improvements in and relating to head-lights
IPC: B60Q1/14
Filed: 1925-04-06
Abstract: 232,216. Brown, C. A. J. April 6, 1925. Lantern screens.- The head lights of a vehicle are each provided with a screen hinged to the cor. responding head d light, and raised and lowered by means of a transverse shaft carried by the headlights or by the screens. In one form, a frame 10 for the reception of screening-material, such as celluloid or coloured or tinted or ground glass, is hinged to or near the top of the headlight front and is slidably connected, by means of a channelled or slotted guide 12 and a hinged slide to an arm 13 on a rocking-shaft 15 operated through a crank 17 and connecting-rod 18 from a hand lever 19 provided with a spring- locking pawl 22 engaging a toothed quadrant 20. In one modification the screens are fixed to the outer end of the arms 13. In a second modification, the hinged screen frames are coupled together by a transverse rod having an arm connected to the crank of the operating-mechanism. The Specification, as open to inspection under Sect. 91 (3) (a) also comprises a construction in which the screen is adapted to be slid up and down in front of the head light by means of an arm on the rocking shaft. This subject-matter does not appear in the Specification as accepted.
Patent GB-255385-A (GB)
Title: Improvements in ankle protectors or stocking guards
IPC: A41D17/00
Filed: 1926-04-07
Abstract: 255,385. Hogan, G. F. April 7, 1926. Leggings.-A stocking protector comprises a sheet of crÛped paper which forms a cover when wrapped round the ankle with one end overlapping the other, a cord &c. being provided for fastening. In the form shown, the sheet is provided with a flap 6 covering the instep, and a tab 8 having a cord 9 attached by a fastener 10. When wrapped round the ankle the cord is passed over a fastener 11, under the instep, over a fastener 12, and back to the fastener 11. The sheets are made in pairs. In a modification, two cords are employed.
Patent GB-579736-A (GB)
Title: Improvements in or relating to radio frequency generating and modulating systems
IPC: H03C1/22
Filed: 1942-07-23
Abstract: 579,736. Valve modulating circuits. HINGS, D. L. July 23, 1942, No. 9240. [Class 40 (v)] A modulating and amplifying system comprises a driven amplifier having a resonant output circuit connected to the anode and an input coupling means comprising a parallel combination of inductance and capacity for coupling the cathode of the driven amplifier to the driving source. The Figure shows the driven amplifier 11 fed through a radio frequency choke 58 and with the antenna 12 coupled through blocking condenser 59 and variable inductance 61, while the condenser 60 provides a branch circuit for radio frequency. In this way a series resonant circuit is obtained giving a high reactance to ground. Part of the coupling means 14 consisting of inductance 34 and condenser 35 is included in the cathode lead of the tube 11 and the modulating potential 13 is applied between the grid and ground, the grid being grounded through a condenser 51 for radio frequency potentials. As shown, the cathode is energized through a tapping on the inductance 34 and a coupled coil 41. Alternatively, separate coupling coils may be provided for the two cathode leads, Fig. 2 (not shown ). A cathode coupled oscillator 10 is used to drive the tuned coupling 14, preferably a beam power tube being used with the screen serving as the anode of the oscillator and with the beam electrodes grounded. In a further modification, Fig. 3 (not shown), an indirectly heated driven valve is used. In this arrangement a choke is included in the cathode lead and the tapping to the tuned coupling means is to the common point of a split condenser, the voltage of the cathode being controlled by varying the ratio of the condensers. The coupling means 14 may be tuned to a harmonic of the oscillator frequency.
Patent GB-146626-A (GB)
Title: Improvements in electrical gear for operating bulk head doors and the like
IPC: B63B19/00
Filed: 1919-04-11
Abstract: 146,626. Harland & Wolff, aud Bentley, H. H. April 11, 1919. Systems for obtaining reciprocating motion.-Relates to electrical gear for operating bulk-head and like doors, of the type operated by an electric motor at each door controlled from a central station, and driving through reducing gear and a wormwheel a pinion meshing with the rack on the door, such that when the door meets with an obstructicn a spring is compressed and the door further forced into the obstruction. The helical spring 16 is mounted between a fixed support 14 and a collar 135 on the worm-shaft 13, and the arrangement is such that when the door closes, the downward thrust of the shaft 13 is taken by a shoulder 134 on the shaft bearing against the fixed support, and when the thrust is upward the spring 16 is compressed between the collar 135 and the under surface of the fixed support. The shoulder 134 presses the ring 1341 of a ball bearing against the support 14. The collar 135 presses a sleeve 15 through a bush 1351 and a ball bearing, the sleeve 15 carrying a screw ring 151 supporting the spring 16. An arm 152 on the sleeve 15 operates a switch 17 when the spring has been sufficiently compressed, thus opening the circuit of the motor switch relay coil and stopping the movement of the door. A projection on the door operates through another switch and coil to stop the motor when the door is fully opened. The electrical control comprises a master switch at a distant point with local switches on each side of the bulkhead doors, these local switches throwing the master switch out of action but restoring its control when the local switches are released; the master switch closing the circuit of an auxiliary motor 23 driving a drum switch 22 through pinions and wheels and a worm gearing with the worm-wheel 236 on the shaft 24. A finger 241 on the shaft 24 after a short idle motion, during which an alarm circuit is closed, makes contact with another finger 242 on a wheel 243 in mesh with wheel 244 on the drum-switch shaft 221. The shaft of the drum carries contacts 25 &c. of graduated lengths adapted to engage in sequence with contacts 251, 252, &c. on the drum. Each pair of contacts 251, 252, &c. is in the coil circuit actuating the relay switch in series with the motor moving the door. Hand operating-gear is provided through a clutch which is thrown out of gear by a solenoid when the door is electrically operated. A separate electrical circuit may be embodied to indicate the position of the doors at any moment.
Patent GB-579526-A (GB)
Title: Improvements in vibratory mechanism
IPC: F16K29/02
Filed: 1944-05-17
Abstract: 579,526. Jigging conveyers. AVERY, Ltd., W. & T., and PAGE, A. E. May 17, 1944, No. 9429. [Class 78 (i)] [Also in Group XXVI] The stem of a pneumatically actuated lift valve for use in vibratory mechanism is mounted within the valve chamber by means of a flexible diaphragm, or diaphragms, which form a resilient sealing wall, or walls, for part of the chamber, the stem having direct or indirect connection to the vibratory mechanism which is outside the casing. The stem a, Fig. 1, of the valve is connected to the casing c above and below a seating c<1>, and above and below the inlet f and exhaust g, by thin flexible diaphragms d, e, which may be made of copper, or other readily flexible metal, or of a resilient non-porous material such as india rubber. A conically-pointed pin l rests on the reciprocating member and transmits its motion to the article to be vibrated. This pin passes through an india rubber sealing disc in which is clamped to the casing. In a modification, Fig. 2, the reciprocating member is a ball q on which rests a saddle r connected to the lower end of a stem a. The stem is positioned by a single flexible diaphragm d. Specification 556,748 is referred to.
Patent GB-1041872-A (GB)
Title: An improved control device for a hydrostatic gear
Inventor: HERTER MARTIN
IPC: F16H61/46
Filed: 1963-03-11
Abstract: 1,041,872. Hydrostatic gear control. M. HERTER. March 11, 1963 [March 9, 1962], No. 9482/63. Heading F2D. An hydrostatic pump and motor variablespeed and reversing gear has an hydraulic control circuit in parallel with the main hydraulic circuit, the pressure in the control circuit for adjusting the pump and the motor being proportioned to the output torque from the motor, as determined by the pressure in the main circuit and being also independently adjustable by manual control. An electrically driven variable capacity pump 3 feeds a reversible motor 4 through a reversing valve 8 controlled by a manual reversing valve 11. A control circuit for the actuation of differential pump and motor adjusting units 21, 22 is fed from the pump output 5 through a variable restrictor 20, in parallel with a non-return valve 13, and is controlled by a pedal-operated reducing valve 34 and a second reducing valve 32. The capacity setting member 27 of the pump 3 is connected to a cam 36 which sets the reducing valve 32 in accordance with the pump output which is proportional to the transmitted torque. The cam 36 is so shaped to provide optimum acceleration of the vehicle without overloading the pump driving motor irrespective of the action of the driver's pedal 33.
Patent GB-987808-A (GB)
Title: Improvements in loudspeakers
Inventor: FINCHAM LAWRENCE REGINALD
IPC: H04R7/12
Filed: 1963-03-12
Abstract: 987,808. Laminates. GOODMANS INDUSTRIES Ltd. Dec. 23, 1963 [March 12, 1963], No. 9734/63. Heading B5N. [Also in Division H4] A loudspeaker of the moving coil type has a diaphragm cone formed, together with its peripheral suspension, from a sheet of poly vinyl chloride to one surface of which a paper cone is bonded. The peripheral portion of the poly vinyl chloride cone may be radially extended to serve as an airtight resilient gasket for the loudspeaker frame. A cone of poly vinyl chloride with integral suspension may have a paper cone bonded to its rear surface or a paper cone may be covered on each surface with a sheet of poly vinyl chloride, the two sheets being joined at the edge of the cone and extended to form the suspension. The diaphragm cone may be made by resting a paper cone on a similarly shaped but apertured rigid metal support, applying adhesive to the paper cone and/or to a flat circular sheet of poly vinyl chloride, placing the sheet over the front of the paper cone and clamping the sheet and paper cone together in an airtight manner around the periphery of the paper cone. The sheet is then heated and vacuum is applied in the support whereby the sheet is drawn into contact with the front surface of the paper cone and the two are bonded together.
Patent GB-465685-A (GB)
Title: Improvements in and relating to the construction of suit cases, trunks and the like
IPC: A45C5/02
Filed: 1936-04-02
Abstract: 465,685. Suitcases &c. BLAIR, R. A., and BLAIR, Ltd., R. A. April 2, 1936, No. 9807. [Class 18] The lower body part, or lid, or both of a suit case, trunk &c. has an outer covering 5, e.g. of leather, applied over a shell 1 of plywood, compressed cardboard &c., the edge 9, Fig. 3, of the covering for one or more surfaces being drawn over a strip 4 fitted along edges of an adjacent surface 3 and united as by an adhesive to the surface 3, and a panel 6 fitted into the shallow recess framed by the strip 4 to complete the covering. The case shown comprises a shell formed of a rectangular sheet 1 of plywood bent to a U -shape, the ends being closed by endpieces 3. A strip 4 of shock-absorbing material e.g. a tube or strip of rubber is fitted along the edges closed by the end 3, and a single piece of leather is secured over the front, base, and rear walls of the case formed from the bent plywood sheet, drawn over the strips 4, and stuck down on the end-walls 3. The recess so formed is filled with a panel 6 of plywood or cardboard covered with leather &c. 7, and secured by adhesive and stitching, riveting, or nailing. The strips 4 may be L-shaped to encompass the corners of the body part, which may be rabbeted on one surface to receive the strip. At the mouth of the case, the edges of the covering material are drawn over a plywood or cardboard strip 10 forming a rim, and a lining 11 is provided. Further shock-absorbing strips may be arranged at any suitable position, over or under the covering material.
Patent GB-253059-A (GB)
Title: Apparatus for milling chocolate and like plastic materials
IPC: A23G1/12
Filed: 1926-04-14
Abstract: 253,059. Macao-Walzenm³hlen-Ges. Dec. 5, 1925, [Convention date]. Mills and apparatus.-In apparatus for milling chocolate and like plastic materials of the type comprising planetary rolls rotatable around a central roll and also on their own axes, some or all of the planetary rolls and also, if desired, the central roll, are formed with through-passages or gaps so that the material can pass transversely through the longitudinal axes thereof. Fig. 3 shows alternate planetary rolls 1 and the central roll 2 provided with diametral through-passages 3, 4. As shown in Figs. 1 and 2, the leading faces 5 of the through-passages in the rolls are substantially radial, and the edges 6, 7 of the passages lie on helical lines. Beaters constituted by cranked bars 8 alternate with gapped rolls, and the ends of the bars may be disposed helically. The shaft 11 of the central roll 2 is driven by means of a pulley 12, and, within the casing 10, carries at its ends spur wheels 13 gearing with wheels 14 on the ends of the planetary rolls or beaters, the wheels 14 meshing with internallytoothed surfaces 15 on the casing 10. The material is introduced by way of a hopper 16 and is discharged through an outlet 18 which can be closed by a shutter 17. Discs 19 on the shafts 9 of the beaters engage bearing-surfaces 20, 21 on the central roll 2 and on the rolls 1. The diameters of the co-operating rolls may differ slightly from the diameters of the gear-wheels thereon so that there is slip at the points of contact. The rolls 1, 2 may be conical, and the ends of the beaters may lie on a conical surface.
Patent GB-182876-A (GB)
Title: Improved means for controlling the power factor of motor and other circuits
IPC: H02J3/18
Filed: 1921-04-02
Abstract: 182,876. Carney, H. A. April 2, 1921. Alternating - c u r r e n t motors.-To maintain the power factor of an alternating-current system when a motor is connected to the system A, B. C., switches D and Q, which may be mechanically coupled in such a manner that switch D closes before switch Q, are provided and the contact-arms H', H<2> of autotransformers are placed on the contacts 6, 6<1>. The arms H<1>, H<2> are moved to give a higher ratio of transformation as the switch Q is closed. A condenser J<3> may be inserted at starting and be short-circuited during normal running.